PlainFlights

Route · SAN → AUS · 2020–2025 BTS data

San Diego to Austin

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SAN to AUS (San Diego to Austin) ranks #1113 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

77.5%
On-time
-1.5 pts
vs US avg
57 min
Delay when late
10,346
Flights
#1113 of 4927
Corpus placement

Cancelled

1.1%

Best Month

Sep 2025 87%

Worst Month

Dec 2024 64%

Distance

1,164 mi

Carriers

25

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 198 69 3 0 WN,F9,OO
Nov 2025 199 58 2 0 OO,F9,WN
Oct 2025 201 53 0 1 OO,WN,F9
Sep 2025 176 23 2 1 WN,OO,F9
Aug 2025 182 39 0 0 OO,WN,F9
Jul 2025 205 64 0 1 OO,WN,F9
Jun 2025 196 42 0 0 OO,WN,F9
May 2025 174 58 2 0 OO,WN
Apr 2025 171 40 0 0 OO,WN
Mar 2025 167 44 0 1 OO,WN
Feb 2025 143 36 0 0 OO,WN
Jan 2025 153 41 1 0 AS,OO,WN
Dec 2024 181 65 8 0 AS,OO,WN
Nov 2024 175 31 2 1 WN,AS
Oct 2024 180 58 2 0 AS,WN
Sep 2024 149 28 1 0 WN,AS
Aug 2024 165 57 1 0 AS,WN
Jul 2024 189 66 1 1 AS,WN
Jun 2024 185 65 1 0 AS,WN
May 2024 178 52 0 0 AS,WN
Apr 2024 172 35 0 0 AS,WN
Mar 2024 165 29 1 0 AS,WN
Feb 2024 125 20 1 0 AS,WN
Jan 2024 131 27 17 0 AS,WN,OO

SAN–AUS seasonal on-time pattern

Best: February (84.2%) · weakest: July (71.1%)

70%75%80%85% JanFebMarAprMayJunJulAugSepOctNovDec 73.5%

Strongest calendar month

February

84.2% on-time · ~119 flights/mo

Busiest calendar month

June

~177 flights/mo avg

Weakest calendar month

July

71.1% on-time · ~164 flights/mo

Cancellation Rate

1.1%

45 of 4,160 flights

Diversion Rate

0.1%

6 of 4,160 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

SAN - San Diego

Full on-time, delay-cause, and seasonal performance for San Diego, CA.

SAN on-time profile

AUS - Austin

Full on-time, delay-cause, and seasonal performance for Austin, TX.

AUS on-time profile

Compare the two airports

See SAN and AUS side by side on delays, cancellations, and reliability.

Compare SAN vs AUS

Origin-hub reliability standing

Mid-pack among SAN departures

From SAN, this corridor sits with 34 other 75–85% on-time routes out of 51 tracked departures, not the hub's reliability leaders (13 at ≥85%) and not the softest ( 4 below 75%). Destination: Austin · fleet on-time rank #3978 of 4927.

What the Data Says About SAN to AUS

The San Diego to Austin corridor (SAN to AUS) posts a 77.5% on-time rate on the lower edge of the average band, based on 10,346 tracked flights. Late flights run 56.7 minutes behind on average. 25 carriers cover the 1,164-mile route; over the last 24 months, 45 of 4,160 flights were cancelled (1.1%) and 0.1% diverted.

The monthly split is wide on this route: Sep 2025 posted the strongest performance at 87% on-time, while Dec 2024 came in at just 64% - a 23-point swing worth factoring into travel timing.

On the multi-year calendar, SAN–AUS peaks in February at 84.2% on-time while June carries the heaviest traffic (~177 flights per month) ; the softest month is July at 71.1%, a 13.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does SAN to AUS rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, SAN to AUS ranks #1113 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from SAN to AUS? ▼
Flights from San Diego to Austin have a 77.5% on-time rate based on 10,346 flights. The average delay is 56.7 minutes. The best recent month was Sep 2025 with 87% on-time.
What is the cancellation rate for SAN to AUS? ▼
Over the last 24 months, 1.1% of flights on this route were cancelled (45 of 4,160 flights) and 0.1% were diverted.
How far is the flight from SAN to AUS? ▼
The flight distance from San Diego (SAN) to Austin (AUS) is approximately 1,164 miles. This route is served by 25 carriers.
When is the best time to fly from SAN to AUS? ▼
The best recent month for on-time performance was Sep 2025 (87% on-time). The worst was Dec 2024 (64% on-time). Consider booking during months with historically better performance.

Airports on this route

SAN Airport

San Diego
AUS Airport

Austin
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using SAN–AUS data

SAN–AUS is mid-pack at 77.5% on-time; month and carrier mix move more than the corridor headline.

  • Compare SAN and AUS airport profiles: delay causes and top routes differ even on the same corridor. SAN airport
  • If your dates flex, February (84.2% on-time) beats July (71.1%) on this corridor. Seasonal chart
  • 4 other routes post a similar 77.5% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.